Computer usage in educational settings creates more attractive and effective learning environments. It provides opportunity to students practicing, doing experiments, researching, solving problems etc. by their selves. In addition, teachers could use computers in their lessons for these alms, and they also design effective course materials which motivate students in lessons. In this study, pre-service physics teachers' ideas about learning and teaching physics by the assist of computers were examined. Qualitative data were obtained and analyzed. Categories obtained by pre-service teachers' ideas showed that they had some negative ideas in addition to the positive ideas about computer assisted physics learning and teaching.